from django.db import models
from django.db import models
from django.utils import timezone

class Question(models.Model):
 def was_published_recently(self):
    return self.pub_date >= timezone.now() - datetime.timedelta(days=1)

class Choice(models.Model):
 question = models.ForeignKey(Question, on_delete=models.CASCADE)
 choice_text = models.CharField(max_length=200)
 votes = models.IntegerField(default=0)
 
 class Question(models.Model):
 # ...
    def __str__(self):
        return self.question_text
class Choice(models.Model):
 # ...
 def __str__(self):
        return self.choice_text